General Data
| B5244S | B5244S2 | |
|---|---|---|
| Output (kW at RPM) | 125/5700 | 103/5700 |
| Maximum torque (Nm at RPM) | 230/4500 | 220/3780 |
| Maximum engine speed (RPM) | 6500 | 6500 |
| Idling speed (RPM) | 850 | 850 |
| No. of cylinders | 5 | 5 |
| Bore (mm) | 83.0 | 83.0 |
| Stroke (mm) | 90.0 | 90.0 |
| Cylinder displacement (dm 3 =liters) | 2435 | 2.435 |
| Firing order | 1-2-4-5-3 | 1-2-4-5-3 |
| Compression ratio | 10.3:1 | 10.3:1 |
| Weight, including oil (kg) | Approximately 177 | Approximately 177 |
Scheme 167
| Standard | B5244S/S2 |
|---|---|
| C-marked 1 | 83.000-83.010 |
| D-marked 1 | 83.010-83.020 |
| E-marked 1 | 83.020-83,030 |
| 1 The bore classification is stamped on top of the engine block. For example: 1CCDDE is read as cyl 1=C, cyl 2=C, cyl 3=D, cyl 4=D, cyl 5=E. | |
Bore (D) in mm
Scheme 168
| Standard | B5244S/S2 |
|---|---|
| C-marked 1........mm | 82.980-82.990 |
| D-marked 1........mm | 82.990-83.000 |
| E-marked 1........mm | 83.000-83.010 |
| 1 The classification is marked on the top of the piston. | |
Piston diameter (D)
Scheme 169
| Measured cylinder diameter........ | 83.015 mm |
|---|---|
| Measured piston diameter........ | 82.995 mm |
| The piston running clearance is........ | 0.020 mm |
| The piston running clearance must be 0.010-0.030 mm. | |
Piston running clearance (example)
Piston rings
Scheme 170
| Upper compression ring........0.030-0.070 mm |
|---|
| Lower compression ring........0.030-0.070 mm |
| Oil control ring assembly........0.038-0.142 mm |
Axial clearance
| Upper........1.20 -0.010/-0.030 mm |
|---|
| Lower........1.50 -0.010/-0.030 mm |
Compression ring dimension
| Spring........1.51 0.020 mm |
|---|
| Rail........0.46 0.011 mm |
Dimension, three piece oil ring
Piston pin
| Diameter........21.000 +0/-0.004 mm |
Scheme 171
| Inlet........31.00 0.15 mm |
|---|
| Exhaust........27.00 0.15 mm |
Valve crown diameter (A)
| Inlet........6.970 +0/-0.015mm |
Valve stem diameter (B)
| Exhaust |
|---|
| H1 = 17.40 mm........6.963 0.007 mm |
Valve stem diameter (B1)
| Exhaust |
|---|
| H2 = 70.40 mm........6.953 0.007 mm |
Valve stem diameter (B2)
| Inlet........104.25 0.25 mm |
|---|
| Exhaust........103.30 0.25 mm |
Total valve length (C)
| Inlet and exhaust........1.50 mm |
|---|
| Minimum height after grinding........1.20 mm |
Disc edge height (D)
| Inlet and exhaust........44.5° |
Mating surface angle (E)
Scheme 172
| Valve stem height........48.4 0.5 mm |
|---|
| Maximum machining of the valve stem........0.5 mm |
Valve stem vertical position
Scheme 173
| A | Upper inlet reduction angle........20° Upper exhaust reduction angle........15° |
|---|---|
| B | Inlet and exhaust matching surface angles........45° |
| C | Lower reduction angle........60° |
| A | Width of the intake valve seat........1.4-1.8 mm Width of the exhaust valve seat........1.8-2.2 mm |
Angles
Scheme 174
| A | External diameter........32.000 +0.025/-0.041 mm |
|---|---|
| B | External height........26.0 0.5 mm |
| C | Solid valve lift shaft length........15.96 mm at 0.02 mm stages up to 16.16 mm. The dimensions are listed on the inside of each tappet. |
Tappets, dimensions